Following the big freeze, and having a narrow escape with a frozen
waste pipe going to an outside drain, I want to re-plumb the pipe to
go down the toilet stack in the cloakroom it passes, on it's way out
I know you can get 90degree pan connectors with a fitting to accept a
waste pipe - so that side is sorted. However I am worried about
siphonage, when the toilet is flushed.
A lot of googling (why are plumbing matters so off-grid ?) and a phone
call to a local plumbers merchants suggests an anti-siphon trap
do the job. The pipe run starts with the washing machine, and
goes about 6' before it's joined by the sink waste, and then will go
about 5' into the soil pipe.
Does this seem practical, sensible, and the correct way ? Presumably I
will need two (although the shop guy said one on the basin - the
washing machine wouldn't need one as it was so long ???????)
- posted 9 years ago